smokejack (smokjak)

1. A machine for turning a roasting-spit by means of a fly-wheel or-wheels, set in motion by the current of ascending air in a chimney. Smoke-jack. a, a, the chimney, contracted in a 5719 looks as if the bird had a pipe in its mouth. G. Trumbull. [New Jersey.] - Smoker's cancer, an epithelioma of the lips or mouth which is considered to be due to the mechanical irritation of the pipe. - Smoker's heart. See heart. - Smoker's patches, a form of leucoplacia buccal is, causing white patches on the mucous membrane of the mouth and lips.